1300000401 has 32 divisors (see below), whose sum is σ = 2247905280. Its totient is φ = 727046928.

The previous prime is 1300000399. The next prime is 1300000423. The reversal of 1300000401 is 1040000031.

It is not a de Polignac number, because 1300000401 - 2¹ = 1300000399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1300000201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64291 + ... + 82056.

It is an arithmetic number, because the mean of its divisors is an integer number (70247040).

Almost surely, 2^1300000401 is an apocalyptic number.

It is an amenable number.

1300000401 is a deficient number, since it is larger than the sum of its proper divisors (947904879).

1300000401 is a wasteful number, since it uses less digits than its factorization.

1300000401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146410 (or 146404 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1300000401 is about 36055.5183155089. The cubic root of 1300000401 is about 1091.3929952787.

Adding to 1300000401 its reverse (1040000031), we get a palindrome (2340000432).

The spelling of 1300000401 in words is "one billion, three hundred million, four hundred one", and thus it is an aban number.